The chart above shows the percentage changes in the price of oil since January 2010, measured in U.S. dollars (30.7% through February), Swiss francs (15.2%) and Japanese yen (12.6%). Isn't this evidence that at least part of the increase in the dollar price of oil is due to the deprecation of the U.S. currency? When priced in Swiss francs, oil prices have only increased by half of the dollar price increase, and when priced in yen, oil has gone up less than half the dollar price increase.
In dollars, the price of oil per barrel went from $78.22 in January 2010 to $102.25 in February 2012, for a 30.7% increase. Based on the 15.2% oil increase measured in Swiss francs, that would be equivalent to a dollar price of only about $90 per barrel, and based on the 12.6% increase measured in yen, it would be equivalent to a dollar price of $88.